Re: [PATCH 14/16] block: switch polling to be bio based

From: chenxiang (M) <hidden>
Date: 2021-11-03 08:05:47
Also in: linux-fsdevel, linux-nvme
Reply to: Christoph Hellwig, 2021-11-03


在 2021/11/3 15:22, Christoph Hellwig 写道:

On Wed, Nov 03, 2021 at 03:11:25PM +0800, chenxiang (M) wrote:

quoted

For some scsi command sent by function __scsi_execute() without data, it
has request but no bio (bufflen = 0),
then how to use bio_poll() for them ?

You can't send these requests as polled.  Note that these are passthrough
requests only.

Understood, thanks.

Christoph Hellwig · 2021-10-12
[PATCH 01/16] direct-io: remove blk_poll support · Christoph Hellwig · 2021-10-12
Re: [PATCH 01/16] direct-io: remove blk_poll support · Sagi Grimberg · 2021-10-13
Re: [PATCH 01/16] direct-io: remove blk_poll support · Chaitanya Kulkarni · 2021-10-28
[PATCH 02/16] block: don't try to poll multi-bio I/Os in __blkdev_direct_IO · Christoph Hellwig · 2021-10-12
[PATCH 03/16] iomap: don't try to poll multi-bio I/Os in __iomap_dio_rw · Christoph Hellwig · 2021-10-12
[PATCH 04/16] io_uring: fix a layering violation in io_iopoll_req_issued · Christoph Hellwig · 2021-10-12
[PATCH 05/16] blk-mq: factor out a blk_qc_to_hctx helper · Christoph Hellwig · 2021-10-12
[PATCH 06/16] blk-mq: factor out a "classic" poll helper · Christoph Hellwig · 2021-10-12
[PATCH 07/16] blk-mq: remove blk_qc_t_to_tag and blk_qc_t_is_internal · Christoph Hellwig · 2021-10-12
[PATCH 08/16] blk-mq: remove blk_qc_t_valid · Christoph Hellwig · 2021-10-12
[PATCH 09/16] block: replace the spin argument to blk_iopoll with a flags argument · Christoph Hellwig · 2021-10-12
Re: [PATCH 09/16] block: replace the spin argument to blk_iopoll with a flags argument · Sagi Grimberg · 2021-10-13
[PATCH 10/16] io_uring: don't sleep when polling for I/O · Christoph Hellwig · 2021-10-12
Re: [PATCH 10/16] io_uring: don't sleep when polling for I/O · Sagi Grimberg · 2021-10-13
[PATCH 11/16] block: rename REQ_HIPRI to REQ_POLLED · Christoph Hellwig · 2021-10-12
Re: [PATCH 11/16] block: rename REQ_HIPRI to REQ_POLLED · Sagi Grimberg · 2021-10-13
[PATCH 12/16] block: use SLAB_TYPESAFE_BY_RCU for the bio slab · Christoph Hellwig · 2021-10-12
[PATCH 13/16] block: define 'struct bvec_iter' as packed · Christoph Hellwig · 2021-10-12
[PATCH 14/16] block: switch polling to be bio based · Christoph Hellwig · 2021-10-12
Re: [PATCH 14/16] block: switch polling to be bio based · Ming Lei · 2021-10-13
Re: [PATCH 14/16] block: switch polling to be bio based · Sagi Grimberg · 2021-10-13
Re: [PATCH 14/16] block: switch polling to be bio based · Pankaj Raghav · 2021-10-15
Re: [PATCH 14/16] block: switch polling to be bio based · Christoph Hellwig · 2021-10-15
Re: [PATCH 14/16] block: switch polling to be bio based · chenxiang (M) · 2021-11-03
Re: [PATCH 14/16] block: switch polling to be bio based · Christoph Hellwig · 2021-11-03
Re: [PATCH 14/16] block: switch polling to be bio based · chenxiang (M) · 2021-11-03
[PATCH 15/16] block: don't allow writing to the poll queue attribute · Christoph Hellwig · 2021-10-12
[PATCH 16/16] nvme-multipath: enable polled I/O · Christoph Hellwig · 2021-10-12
Re: [PATCH 16/16] nvme-multipath: enable polled I/O · Sagi Grimberg · 2021-10-13
Jens Axboe · 2021-10-12
Sagi Grimberg · 2021-10-12
Jens Axboe · 2021-10-12
Sagi Grimberg · 2021-10-12
Christoph Hellwig · 2021-10-12
View all 35 messages

`h`	back out one level
`j`	next message in thread / next series-diff position
`k`	previous message in thread / previous series-diff position
`l`	drill in
`Esc`	close help / fold thread tree
`?`	toggle this help